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首页> 美国政府科技报告 >Simple Theory for the Atomic-Force Microscope with a Comparison of Theoretical and Experimental Images of Graphite.
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Simple Theory for the Atomic-Force Microscope with a Comparison of Theoretical and Experimental Images of Graphite.

机译：原子力显微镜的简单理论与石墨的理论和实验图像比较。

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In this theory the atom-atom interactions within the sample are modeled with use of a force-constant matrix that is valid in the Harmonic approximation. The tip-atom-sample interactions are modeled by a Lennard-Jones potential. Images for single-atom tips that are calculated from this theory in which the atoms are allowed to relax, are similar to previous theoretical images that were calculated from a rigid-sample model. The asymmetric images produced by experiment could be reproduced theoretically with double-atom tips. All calculations were performed using a commercially available desk-top computer. Keywords: Scanning tunneling microscope, Atomic force microscope, Pyrolytic graphite, Single-atom tip images, Simulating asymmetric tips, Lennard-Jones potential, Neutron scattering. (JES)

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